How does one repent from dealing with sorcery to commit fornication?

Question:
May Allah reward you. What is the ruling on one who dealt with a sorcerer to cast spells on some women and children and committed fornication with them? What should I do so that Allah forgives me?

Answer:
This is a major crime from two aspects. The first aspect is sorcery. Your cooperation with the sorcerer and the practice of sorcery is disbelief (kufr). Learning sorcery and teaching it is disbelief. Allah, Glorified and Exalted is He, said: "We are but a trial." The two angels who teach sorcery, Harut and Marut, teach sorcery as a trial, a test, and an examination. However, they advise those who come to learn, saying to them, "We are but a trial," meaning a test for people, so do not commit disbelief. This is advice indicating that the one who learns sorcery commits disbelief.
Before that, He, Glorified and Exalted is He, said: "They disbelieved by teaching people sorcery." Thus, He made teaching sorcery disbelief and learning it disbelief. So you have fallen into this crime, and the second crime is fornication, may Allah protect us from it. This is a crime. So you must repent to Allah, Mighty and Majestic. You must repent and do not despair of the mercy of Allah. If you repent with a sincere repentance, Allah will accept your repentance. Yes.